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57211106 = 2131218363
BaseRepresentation
bin1101101000111…
…1100011100010
310222122121212212
43122033203202
5104121223411
65402122122
71263200141
oct332174342
9128577785
1057211106
112a326607
12171b0342
13bb11734
147853758
15505168b
hex368f8e2

57211106 has 8 divisors (see below), whose sum is σ = 86472144. Its totient is φ = 28387060.

The previous prime is 57211093. The next prime is 57211123. The reversal of 57211106 is 60111275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×572111062 = 6546221299486472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108920 + ... + 109443.

It is an arithmetic number, because the mean of its divisors is an integer number (10809018).

Almost surely, 257211106 is an apocalyptic number.

57211106 is a deficient number, since it is larger than the sum of its proper divisors (29261038).

57211106 is a wasteful number, since it uses less digits than its factorization.

57211106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218496.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 57211106 is about 7563.8023506699. The cubic root of 57211106 is about 385.3246398811.

The spelling of 57211106 in words is "fifty-seven million, two hundred eleven thousand, one hundred six".

Divisors: 1 2 131 262 218363 436726 28605553 57211106